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Articles 9901 - 9930 of 19742
Full-Text Articles in Entire DC Network
Establishing That Contrast Is Cognitive Dissonance, Travis R. Smith
Establishing That Contrast Is Cognitive Dissonance, Travis R. Smith
Animal Sentience
Zentall suggests that the same mechanism underlies cognitive dissonance in humans and the within-trial contrast effect in pigeons (and humans). The contrast effect has face validity in explaining cognitive dissonance, but more research is needed to establish construct validity. To determine whether both phenomena share the same mechanism, future research should test (1) whether both share physiological processes, (2) whether individuals who show sensitivity to one are also sensitive to the other, and (3) whether both phenomena are affected by the same changes in an independent variable.
Investigating The Quantity And Types Of Microplastics In The Organic Tissue Of Oysters And Crabs In The Indian River Lagoon, Heidi Waite
Honors Undergraduate Theses
Microplastics are widespread and abundant. Few studies have examined the diversity and abundance of microplastics in wild organisms. This study determined the microplastic quantity and types in the organic tissues of the eastern oyster Crassostrea virginica and Atlantic mud crab Panopeus herbstii from the Indian River Lagoon (IRL). This study also investigated whether location affected the microplastic abundance and variety. Organisms were collected from three sites across Mosquito Lagoon in the northern IRL. Oysters were frozen after collection. Crabs were placed in containers for 5 days before freezing. The soft organic tissue was chemically digested using hydrogen peroxide, filtered, …
Influence Of Mature Overstory Trees On Adjacent 12-Year Regeneration And The Woody Understory: Aggregated Retention Versus Intact Forest, Miranda T. Curzon, Susan C. Baker, Christel C. Kern, Brian J. Palik, Anthony W. D'Amato
Influence Of Mature Overstory Trees On Adjacent 12-Year Regeneration And The Woody Understory: Aggregated Retention Versus Intact Forest, Miranda T. Curzon, Susan C. Baker, Christel C. Kern, Brian J. Palik, Anthony W. D'Amato
Aspen Bibliography
No abstract provided.
Slowing The Evolution And Outbreak Of Antibiotic Resistance, Connie Okasaki
Slowing The Evolution And Outbreak Of Antibiotic Resistance, Connie Okasaki
HMC Senior Theses
Antibiotic resistance is a problem of significant and growing international concern, in part due to the rapid evolution of new resistances. One potentially important factor in the emergence of resistance is concentrated antibiotic use in environments such as hospitals. Such high use creates a strong selective pressure for pathogens to evolve resistance. We analyze some strategies hospitals can use to slow the evolution of resistance, and estimate the length of the delay between evolution and outbreak of resistance.
Cave Millipedes Of The United States. Xiv. Revalidation Of The Genus Speorthus Chamberlin, 1952 (Diplopoda, Polydesmida, Macrosternodesmidae), With A Description Of A New Species From Texas And Remarks On The Families Polydesmidae And Macrosternodesmidae In North America, William A. Shear, James M. Reddell
Cave Millipedes Of The United States. Xiv. Revalidation Of The Genus Speorthus Chamberlin, 1952 (Diplopoda, Polydesmida, Macrosternodesmidae), With A Description Of A New Species From Texas And Remarks On The Families Polydesmidae And Macrosternodesmidae In North America, William A. Shear, James M. Reddell
Insecta Mundi
The genus Speorthus Chamberlin is revalidated for S. tuganbius Chamberlin and S. reyesi, new species (Diplopoda, Polydesmida, Macrosternodesmidae). The families Polydesmidae and Macrosternodesmidae (as they occur in North America) are briefly discussed, and their component North American genera listed. The validity of Macrosternodesmidae is reaffirmed; the family is predominantly North American. Nearctodesminae, new status, is formally designated as a subfamily of Macrosternodesmidae. The superfamily Trichopolydesmoidea is synonymized with the superfamily Polydesmoidea, new combination.
Una Nueva Especie De Eraina Clarke (Lepidoptera: Autostichidae) De Chile Central, Francisco Urra
Una Nueva Especie De Eraina Clarke (Lepidoptera: Autostichidae) De Chile Central, Francisco Urra
Insecta Mundi
Se describe una nueva especie de Autostichidae, Eraina beechei nov. sp., a partir de ejemplares recolectados en la precordillera andina de la Provincia de Ñuble, Región del Biobío. Se presentan caracteres de diagnóstico para la especie; se entregan fotografías del adulto, ilustraciones de las estructuras genitales del macho y de la hembra, y una clave para la determinación de las especies del género Eraina.
Morphological Revision Of The Western Palaearctic Species Of The Genus Copris Geoffroy, 1762 With Three Foretibial External Teeth (Coleoptera: Scarabaeoidea: Scarabaeidae), Stefano Ziani
Insecta Mundi
This revision concerns a small group of Western Palaearctic Copris species (Coleoptera: Scarabaeoidea: Scarabaeidae) distinguished by having three lateral teeth on the foretibae. According to the literature, this group consists of four taxa: Copris armeniacus Faldermann, 1835, C. felschei Reitter, 1892, C. pueli Mollandin de Boissy, 1905 and C. umbilicatus Abeille de Perrin, 1901. Copris armeniacus is herein deemed a species inquirenda, and C. felschei, for which a neotype is designated, is deemed valid. Copris umbilicatus is recorded for the first time from Turkey. A key to all species of the genus Copris known from the Western Palaearctic …
Key To The Korean Species Of Armored Scale Insects (Hemiptera: Diaspididae), Soo-Jung Suh
Key To The Korean Species Of Armored Scale Insects (Hemiptera: Diaspididae), Soo-Jung Suh
Insecta Mundi
A list of all 80 species of armored scale insects (Hemiptera: Diaspididae) in 30 genera that have been identified or documented in Korea, along with a dichotomous key to separate them, is provided.
Species Groups Of Traumatomutilla André (Hymenoptera: Mutillidae), Kevin A. Williams, Pedro R. Bartholomay, Márcio Luiz De Oliveira
Species Groups Of Traumatomutilla André (Hymenoptera: Mutillidae), Kevin A. Williams, Pedro R. Bartholomay, Márcio Luiz De Oliveira
Insecta Mundi
Females of Traumatomutilla André (Hymenoptera: Mutillidae) are organized into 14 species groups; 136 of the 138 Traumatomutilla taxa known from females were studied. Of these species groups, only the inermis species group was adequately established and diagnosed in the literature (Casal 1969). The remaining newly established species groups are as follows: americana, auriculata, bellica, bifurca, diabolica, gemella, indica, integella, juvenilis, quadrinotata, tabapua, trochanterata, and vitelligera. Diagnoses and lists of included species are provided for each species group. Eighty-three new country records are provided for 49 species.
Annotated World Bibliography Of Host Plants Of The Melon Fly, Bactrocera Cucurbitae (Coquillett) (Diptera: Tephritidae), Grant T. Mcquate, Nicanor J. Liquido, Kelly A. A. Nakamichi
Annotated World Bibliography Of Host Plants Of The Melon Fly, Bactrocera Cucurbitae (Coquillett) (Diptera: Tephritidae), Grant T. Mcquate, Nicanor J. Liquido, Kelly A. A. Nakamichi
Insecta Mundi
The melon fly, Bactrocera cucurbitae (Coquillett) (Diptera: Tephritidae), is a widespread, economically important tephritid fruit fly species. Bactrocera cucurbitae infests fruits and vegetables of a number of different plant species, with many host plants in the plant family Cucurbitaceae, but with additional hosts scattered across many other plant families. Although thought to be native to India, its distribution has spread throughout many countries in Oriental Asia, into a number of Pacific Island nations, and into Africa. The documented introductions into countries outside its native distribution show that this species could establish in other countries where it does not presently occur, …
The Plecoptera Of Panama. I. The Stonefly Fauna Of Mount Totumas Cloud Forest And Biological Reserve, Including A New Country Record, Brian J. Armitage, Bill P. Stark
The Plecoptera Of Panama. I. The Stonefly Fauna Of Mount Totumas Cloud Forest And Biological Reserve, Including A New Country Record, Brian J. Armitage, Bill P. Stark
Insecta Mundi
The Republic of Panama currently has 21 recorded species of stoneflies, all in the genus Anacroneuria (Plecoptera: Perlidae). Herein, we record five species of this genus from the Mount Totumas Cloud Forest and Biological Reserve, in the upper reaches of the Río Chiriquí Viejo watershed. One of these species, A. plutonis (Banks), represents a new country record for Panama. These results are part of an ongoing effort to characterize the aquatic insect fauna of Panama, and to evaluate that country’s major watersheds.
Myrmeconycha New Genus: The Fi Rst Myrmecophilous Fl Ea Beetle (Coleoptera: Chrysomelidae: Galerucinae: Alticini), A. S. Konstantinov, A. K. Tishechkin
Myrmeconycha New Genus: The Fi Rst Myrmecophilous Fl Ea Beetle (Coleoptera: Chrysomelidae: Galerucinae: Alticini), A. S. Konstantinov, A. K. Tishechkin
Insecta Mundi
The first myrmecophilous flea beetle genus (Myrmeconycha Konstantinov and Tishechkin, new genus) with four new species (M. erwini Konstantinov and Tishechkin, new species – Ecuador, M. gordoni Konstantinov and Tishechkin, new species – Brazil, M. pakaluki Konstantinov and Tishechkin, new species – Panama, and M. pheidole Konstantinov and Tishechkin, new species – Costa Rica) is described and illustrated. It is compared with flea beetles of the subtribe Disonychina (Coleoptera: Chrysomelidae: Galerucinae: Alticini) and may be easily differentiated based on the external and internal features, which include the waxy surface of the head and pronotum, reticulated surface of …
A New Species Of Madoniella Pic (Coleoptera: Cleridae) From Chiapas, Mexico, Jacques Rifkind, Weston Opitz
A New Species Of Madoniella Pic (Coleoptera: Cleridae) From Chiapas, Mexico, Jacques Rifkind, Weston Opitz
Insecta Mundi
Opitz (2011) revised the New World clerid genus Madoniella Pic, and recognized 74 species. We describe and illustrate Madoniella fitzgeraldae, new species (Coleoptera: Cleridae), recently discovered in Chiapas, México.
Southeast Farallon Island Arthropod Survey, Jeffrey Honda, Bret Robinson, Michael Valainis, Rick Vetter, Jaime Jahncke
Southeast Farallon Island Arthropod Survey, Jeffrey Honda, Bret Robinson, Michael Valainis, Rick Vetter, Jaime Jahncke
Insecta Mundi
Effective island conservation depends on thorough biodiversity surveys and species assessment. The U.S. Fish and Wildlife Service in coordination with Point Blue Conservation Science undertook a two-year insect survey of the Farallon Islands, California, in order to catalog current insect and spider species on the island and to gather information that will be used to examine prey dynamics to aid in the conservation of the endemic salamander Aneides lugubris (Hallowell). The report lists 11 insect orders representing 60 families, 107 genera and 112 insect species on Southeast Farallon Island. Holometabolous orders were the most represented on the island with Coleoptera …
Identifi Cation Of A New Species Of Aphis (Hemiptera: Aphididae) Based On Distinct Morphology Rather Than Dna Barcoding, Doris Lagos-Kutz, D. J. Voegtlin, Glen Hartman
Identifi Cation Of A New Species Of Aphis (Hemiptera: Aphididae) Based On Distinct Morphology Rather Than Dna Barcoding, Doris Lagos-Kutz, D. J. Voegtlin, Glen Hartman
Insecta Mundi
Aphis elena Lagos-Kutz and Voegtlin, sp. nov. (Hemiptera: Aphididae), is described from specimens collected in Illinois, USA, on the North American native plant, Pycnanthemum virginianum (L.) T. Dur. & B.D. Jacks. ex B.L. Rob. & Fernald (Family: Lamiaceae). Both apterous and alate viviparae are described and illustrated, and a dichotomous key is provided to apterous and alate viviparae of the six species of Aphis that have been recorded on plants in the family Lamiaceae in North America. Neighbor-joining analysis of cytochrome oxidase 1 (Cox1) indicated a close relationship of the new species with Aphis monardae Oestlund, which also …
Two New Species Of Cerambycidae (Coleoptera) From Colombia, Antonio Santos-Silva, Juan Pablo Botero
Two New Species Of Cerambycidae (Coleoptera) From Colombia, Antonio Santos-Silva, Juan Pablo Botero
Insecta Mundi
Taeniotes antonkozlovi Santos-Silva and Botero, new species (Cerambycidae, Lamiinae, Monochamini) and Amphelictus antonkozlovi Santos-Silva and Botero, new species (Cerambycidae, Cerambycinae, Cerambycini, Sphallotrichina) are described from Colombia.
Record Breaking Achievements By Spiders And The Scientists Who Study Them, Stefano Mammola, Peter Michalik, Eileen Hebets, Marco Isaia
Record Breaking Achievements By Spiders And The Scientists Who Study Them, Stefano Mammola, Peter Michalik, Eileen Hebets, Marco Isaia
Eileen Hebets Publications
Organismal biology has been steadily losing fashion in both formal education and scientific research. Simultaneous with this is an observable decrease in the connection between humans, their environment, and the organisms with which they share the planet. Nonetheless, we propose that organismal biology can facilitate scientific observation, discovery, research, and engagement, especially when the organisms of focus are ubiquitous and charismatic animals such as spiders. Despite being often feared, spiders are mysterious and intriguing, offering a useful foundation for the effective teaching and learning of scientific concepts and processes. In order to provide an entryway for teachers and students—as well …
Importance Of Maintaining The Diverse Tallgrass Prairie, Shelley Kosola
Importance Of Maintaining The Diverse Tallgrass Prairie, Shelley Kosola
Sustainable RIVER
No abstract provided.
Impact Of Drought On Suspended Load In South Dakota Tributaries, Bethany Vazquez
Impact Of Drought On Suspended Load In South Dakota Tributaries, Bethany Vazquez
Sustainable RIVER
No abstract provided.
Effects Of Fish On Aquatic Insects, Tyler Seidel
Effects Of Fish On Aquatic Insects, Tyler Seidel
Sustainable RIVER
No abstract provided.
A New Tachinid Genus And Species Record For North America: Iceliopsis Borgmeieri Guimarães, John O. Stireman Iii, Jane E. Dell
A New Tachinid Genus And Species Record For North America: Iceliopsis Borgmeieri Guimarães, John O. Stireman Iii, Jane E. Dell
Biological Sciences Faculty Publications
The Iceliini are a small, enigmatic New World tribe of Tachininae consisting of three genera, Icelia RobineauDesvoidy, Iceliopsis Guimarães, and Erviopsis Townsend, and five recognized species (Guimarães 1976). All known species are exclusively Neotropical in distribution with the exception of Icelia triquetra (Olivier), which ranges from Brazil, through Central America, and as far north as New York state (O’Hara & Wood 2004). Members of the tribe are generally medium-sized (ca. 7–12 mm), elongate, yellowish or grayish in color, and resemble Dexiini or Leskiini in general appearance. Species of Iceliini are relatively rarely collected and there is but a single host …
Nitrogen Pulses And Competition Between Native And Invasive Plant Species, Nicolas Matallana, Mandy L. Slate, Ragan M. Callaway
Nitrogen Pulses And Competition Between Native And Invasive Plant Species, Nicolas Matallana, Mandy L. Slate, Ragan M. Callaway
Undergraduate Theses, Professional Papers, and Capstone Artifacts
Variation in the timing and size of resource fluctuations can influence how plants grow, allocate biomass, and reproduce. Resources are sometimes made available in relatively continuous, reliable pulses while other times they are temporally separated and unpredictable. Native and invasive plant species are thought to respond differently to resource fluctuations, or pulses, which can influence competitive outcomes. The “Fluctuating Resource Hypothesis” predicts that resource fluctuations benefit invasive species more than native species, potentially because many invaders are highly effective at rapidly capturing resources. In a field setting, we examined the effects of varying nitrogen pulses on competition between exotic invasive …
Redd Habitat Selection For Brook Trout In The Necktie River Bemidji, Mn, William Varela, Zachary Buckley
Redd Habitat Selection For Brook Trout In The Necktie River Bemidji, Mn, William Varela, Zachary Buckley
Journal of Earth and Life Science
The presence of quality suitable habitat is important for the success of naturally reproducing Brook Trout populations. Therefore, measuring redd habitat Brook Trout select for was the focus of this study. Brook Trout redds were observed during the spawning season of 2016. We identified a total of 18 redds in the Necktie River in late October and early November. Specific environmental variables associated with redd selection were measured: velocity, in-stream cover, canopy cover, bank overhang, river width, substrate type and size, temperature, and max-depth. The same environmental variables were measured for 30 randomly selected sites. Redds were distributed in riffles …
Influence Of Time Spent In Captivity On Aggressive Behaviors Of Gray Wolves Canis Lupus, Chelsea Knutson
Influence Of Time Spent In Captivity On Aggressive Behaviors Of Gray Wolves Canis Lupus, Chelsea Knutson
Journal of Earth and Life Science
Knowledge of the characteristics that promote group success is key to understanding the adaptive advantages of sociality for many group-oriented species. In this study, nine Gray Wolves Canis lupis were each observed twelve times over a period of six months to determine if the amount of time spent in the wild/captivity had any effect on aggressive behaviors. The number of aggressive behaviors were recorded for each wolf during each observation. The nine wolves were separated into three groups depending on their upbringing; born and raised in captivity, born in the wild and raised in captivity, and born and raised in …
Local Scale Comparisons Of Avian And Woody Vegetation Communities Within Four Arkansas State Parks, Bennett P. Grooms, Rachael E. Urbanek
Local Scale Comparisons Of Avian And Woody Vegetation Communities Within Four Arkansas State Parks, Bennett P. Grooms, Rachael E. Urbanek
Journal of the Arkansas Academy of Science
Measuring the spatial distribution of biotic communities can provide useful data to wildlife managers on how and why species assemblages differ across a landscape. During 18 May – 7 August 2015, we conducted avian point counts and collected vegetation data in nested subplots at 4 Arkansas state parks. We then used a series of one-way ANOVAs and Kruskal-Wallis tests to examine differences in species richness, Simpson’s evenness, Simpson’s diversity, and Bray-Curtis similarity across the 4 parks. Mount Magazine State Park had the lowest avian evenness (F3,22 = 9.57 P = 0.003) and diversity (F3,22 = 17.8 …
Phylogeography And Vicariant Separation Of Two River Darters, Percina Uranidea And Percina Vigil, From Rivers That Drain The North American Interior Highlands, T. Yamashita, J. M. Rigsby, J. Stoeckel
Phylogeography And Vicariant Separation Of Two River Darters, Percina Uranidea And Percina Vigil, From Rivers That Drain The North American Interior Highlands, T. Yamashita, J. M. Rigsby, J. Stoeckel
Journal of the Arkansas Academy of Science
The phylogeography and separation of two river darters, Percina uranidea and P. vigil were investigated through sequencing of the mitochondrial Cytochrome B and Cytochrome Oxidase genes. These molecular markers revealed the darters exhibit moderate genetic divergence between two large river drainage systems within the Mississippi River basin associated with the Interior Highlands of midwestern North America. An additional haplotype network analysis also supported these trends. Phylogenetic divergence dating indicated that population separation between the river systems occurred after recent Pleistocene glacial events rather than an early Pleistocene separation.
Human Dimensions Of Habitat Loss In The Plains And Prairie Potholes Ecoregion, Lily A. Sweikert
Human Dimensions Of Habitat Loss In The Plains And Prairie Potholes Ecoregion, Lily A. Sweikert
Electronic Theses and Dissertations
The Plains and Prairie Potholes Ecoregion (PPPE), is located in the north-central contiguous United States and is one of the most imperiled grassland regions in the world. Most of the region is privately owned and used for the production of agricultural commodities. In addition to its direct benefits to humanity, the PPPE provides multiple ecosystem services including, soil and water quality improvements, carbon sequestration, weather amelioration, and wildlife habitat. Recent increases in expansion of row crop agriculture concerns conservation practitioners about the long-term integrity of the PPPE. Conservation practitioners are looking to improve their private landowner conservation initiatives in the …
Evaluation Of The Deadwood Bighorn Sheep Herd Translocation, Ty J. Werdel
Evaluation Of The Deadwood Bighorn Sheep Herd Translocation, Ty J. Werdel
Electronic Theses and Dissertations
From 2015-2017, we evaluated a newly established bighorn sheep (Ovis canadensis) herd in the Deadwood Region of the Black Hills, South Dakota. Our objectives were to 1a) determine annual survival rates, 1b) determine cause-specific mortality, 1c) estimate population size, 2a) assess genetic diversity, 2b) assess disease prevalence, 3) evaluate movement patterns post-release, 4a) evaluate 3rd-order habitat selection, and 4b) estimate herbaceous biomass at foraging sites post-release of translocated bighorn sheep. In February 2015, we captured and translocated 26 bighorn sheep from the Luscar Mine near Hinton, Alberta, Canada to the Deadwood Region of the Black Hills, South Dakota. Overall annual …
An Evaluation Of Nitrogen Supplementation And Processed Soy Fractions On The Performance Of Cultured Fishes, Brandon M. White
An Evaluation Of Nitrogen Supplementation And Processed Soy Fractions On The Performance Of Cultured Fishes, Brandon M. White
Electronic Theses and Dissertations
World population growth has resulted in an increased demand for a sustainable food supply. This rapid growth coupled with an increased per capita consumption of seafood, has resulted in many of the world’s marine fisheries being over-exploited in an effort to meet the global demand for seafood. Aquaculture has attempted to fill the supply and demand gap created by the dwindling supply of fish in the world’s oceans. Fishmeal (FM) has traditionally been the primary protein ingredient in aquafeeds fed to farm-raised fish, however its unstable supply and increasing price have driven researchers to identify alternative protein sources. Soybean meal …
Evaluation Of Gamebird Use And Thermal Characteristics Of Alfalfa And Perennial Grasses In Eastern South Dakota, Neal P. Martorelli
Evaluation Of Gamebird Use And Thermal Characteristics Of Alfalfa And Perennial Grasses In Eastern South Dakota, Neal P. Martorelli
Electronic Theses and Dissertations
The northern Great Plains provide critical breeding habitat for waterfowl and gamebirds in the United States. Peak commodity prices in the late 2000s resulted in increased agricultural production and large-scale conversions of grassland habitat to monoculture row crops. However, recent declines in commodity prices have created a renewed interest for private landowners to diversify crops and enroll in government subsidized conservation programs that convert idle grassland and unproductive cropland to wildlife friendly perennial grassland plantings. Exploring alternative grassland restoration techniques can improve the efficiency of management practices to benefit future wildlife habitat and productivity on both public and private lands. …